Valve



{No Model.)

W. H. SHAY.

VALVE.

N0. 60 4,846. Patented May 31, 1898.

WILLIAM HENRY SltlAY, OF NEWI'JURG, NEW YORK, .ASGJEJGKU ml 01 TO BENJAMIN l RAllKl'illl Slzlifi, l

OF POUGHKEEESIE, Nlllll- YO Fill.

Application filed January 5,1897. Serial No. 618,0El. (No model.)

T0 (056 whom it may concern: Be it known that l. VILLIAM HENRY filHAIY,

a citizen. of the United States, residing; at New'burg', in the county of Orange and State of New York, have invented 2t new and useful Valve for Steam, 'Wctor, Gus, duo, of which the following a specification.

The object of this invention is to overcome certain. defects that exist in globe and angle [0 valves as usuullyinade byprovidlng a method 'of construction that avoids the injury to the valve by the strain couced by changes in the length of valve-stein pi 'oduced by the diliterout temperatures to which the valve is sub jected and provide a method of construc tion of seat and plug of valve that if any foreign matter should find lodgmcnt on either seat or plug of valve the peculim= Way tool; seat and plug are formed will assist to clear eitli e1 seat or plug of any nmttei' lodged on; also, to provide it construction by which the value may readily be changed into (111 elbow, and is for that reason adopted to valves of the angle type. I attain these obj cots in the manner shown in the accompanying dmwing, which represents a. vertical sectional VlQW.

Letters are used to denote the several parts.

The body of the valve has a, seat ll, iu which is out a taper: screw-thread. Tli lug A, which fits sect l5, also has a tamper so ewtlircud. Ti lie sorcwlln'ezul on both soot l3 and plug A we cut with o. Ina-tolled top and die, which may be fitted by grimliu This insures it perfect lit of seat ll with plug ll.

The valve-stem (3 is firmly secured to plug A. The valve-stem C is cylindrical in form. and passes through valvolop K, also of cylindrical form. Stem C and Volvo-top K are fitted so that stem C will turn and slide, or so that stem 0 will move by hand or by expansion and contraction. The seat 13, plug A, stem C, and valve-top K are all centrally in aliuement. The lower part of valve-top has a. sci'eiwtlireod at Ill. The plug A. into it screw-thread at D. The threads H and D engage each other when valve-stem (l is raised and holds stem C in position.

A valve made according to the foregoing de tailed description has many advantages over other methods of construction. Valves as close this valve. The screw-thread.

is ooutiiiod both cnds. c stem is i ut the temperature of tile solve. if after valve closed the temperature of stem should. fall, it will become shorter in length and plug from the walvecczit, czmsiug at leolz. l v llfill the conditions are i'evel'eod us to teuo perature, the plug it be forced onto ilo seat and apt when rope? ed several luv to strain the valve, wring it u further use. llii'y lllVGliiLlOil corrects this dofect, as shown from the detailed description The value-stein belugrce to move the s is undo? no stroiiii and if tigii t when remain so until. ope-u, eliungeuof tom having no effect whatever.

"Very little is required to ooeu Zlil l clog. col: from perfectlyonatched taps cud d ;s o. obtained "ith a. small foi'co, and the will clear plug or seat of any motto-s. tl lodged on either of them.

The valve 1 o described uoo' adapted use on o llGl3-Wtli .tiug st Where it is necessary to proviuc a. plan to offaiixtm'o 'i'oi'i'ep. ii'sc-ndleovetiic i for use. For this purpose I main u. oustirou ot' the single type, using; it in of elbows, placing two on i ll :wlifi cellar, and, desired, the oiiiili o i i. main pipes. here used for tlii have 1 hole drillod in side of i i small cock to it, so tluit tile pail-t of ,teul that is closed can be drain ed of i to mitt-J.

The repairs cam ti on be mode and. lllB of the plantused in the usual valve-stein being; free from screW-tlu when the alve opened. he plug free from any port of the valve except stem. The stem with plu. :tll then lie 1 to lllli'8t1(5(l recess in "to of valve, 1 much free space for W te us on elliuow.

l am aware that Volvo.) .viu scrow-thread ed. seztts and plugs have liccu and do not claim that l attire. but be vc that bed. llQlQ-lll for the purpose- 1. Hill f:

combination ..i specified to be new.

What I desire te secure by Letters Patent In. an angle-Valve of the character specified,

eomprising'the easing having inlet and outlet openings, and a valve-seat placed at the opening of greatest depth, a valve-stem having at the lower end a valve formed by joining the larger ends of the frustums of two canes, said valve having each end serewthreaiietl, the lower end of valve being adapted to fit a screw-threaded socket in the valveseat when shut, and when open the upper end of valve to fit the screw-threaded recess in the bonnet or top of easing, as shown and described.

WILLIAM HENRY SHAY.

Witnesses:

ISAAC B. LOZIER, WM. II. DANIELS. 

